When oven-dried powdered clays are heavily compressed they acquire tensile strength, which is variously attributed to bonding or to suctions in water not evaporated during oven drying. When coarse-grained soils are heavily compressed the grains fracture (Coop, 1990; McDowell & Bolton, 1998). The tests described here show that, after compression under stresses of the order of 100 MPa, oven-dried carbonate sand develops tensile and compressive strengths of the order of 1 MPa due to relatively large suctions in small quantities of water released from within the pores of the carbonate material.
SUCTION AND STRENGTH IN HEAVILY COMPRESSED CARBONATE SAND
NOCILLA, Alessandra
2003-01-01
Abstract
When oven-dried powdered clays are heavily compressed they acquire tensile strength, which is variously attributed to bonding or to suctions in water not evaporated during oven drying. When coarse-grained soils are heavily compressed the grains fracture (Coop, 1990; McDowell & Bolton, 1998). The tests described here show that, after compression under stresses of the order of 100 MPa, oven-dried carbonate sand develops tensile and compressive strengths of the order of 1 MPa due to relatively large suctions in small quantities of water released from within the pores of the carbonate material.File in questo prodotto:
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